as regards; with reference to
关于，至于；就…而言
the two groups were similar with respect to age, sex, and diagnoses.
这两组人在年龄、性别和诊断结果方面都很相似。
because
因为，鉴于
used as a polite formula preceding, and intended to mitigate the effect of, an expression of disagreement or criticism
尽管（对您）尊敬之至 ［用于表示异议或批评的话之前］
with all due respect, Father, I think you've got to be more broad-minded these days.
恕我直言，父亲，我认为这些日子您必须心胸更开阔些。